For Sakurai, Mayuko has always been someone he deeply admired since childhood—a special presence, almost like a friend's mother. He had countless encounters with Mayuko in the past. Now, the chance to spend time alone with her has finally arrived. No longer the powerless child he once was, he gathers his courage and confesses his feelings to Mayuko. Surprised and resistant at first, she struggles with the sudden advance from her son's friend. But as she hears the young man sincerely declare, "I've always decided that my first woman would be you, Mayuko-san!", her resistance slowly begins to fade away...